%0 Journal Article
%T Supports of (¦Í,4,2) designs
%A Charles J. Colbourn
%A Gordon F. Royle
%J Le Matematiche
%D 1990
%I University of Catania
%X The spectrum of possible numbers of repeated blocks in (¦Í,4,2) designs is determined for all ¦Í 121.
%U http://www.dmi.unict.it/ojs/index.php/lematematiche/article/view/658